When launched in 1974, the Volvo 200-series was the most startling adherent of the move towards providing good passive safety in all road cars. It was a heavily revised update of the 100-series and was available in four-cylinder 244/245 form, and six-cylinder V6 264/265 form, powered by an engine jointly-developed with Peugeot and Renault. The range lasted until 1993. With many solid examples left, it makes a sound everyday classic. Here's what to watch for.